They all are Manaliths, they cost 3, tap for any color of mana, and then I prefer them to Commander's Sphere often since they'll tap for other colors that you don't make in case you Clone, Bribery, Insurrection or otherwise steal things that you want to activate
Most authentic standard Pokmon cards measure approximately: 0.300.34 mm Depending on the print run, cardstock, and foil layer, small differences are perfectly normal
Dregscape gets you out of this bind by giving them all unearth and giving you one last swing, or allows you to trigger effects that proc when slivers enter the battlefield
Funnily enough, this also picks up -1/-1 counters, finality counters, stun counters, or any other detrimental counters that end up on your creatures
I wonder how well this re-balancing will play out: costs one more mana, yet forces opponent to pay one more mana, and feeds the exile zone for your own effects